Used primarily as an intermediate in organic synthesis, this compound serves in the construction of complex hydrocarbon chains for specialty chemicals. Its bromine functionality allows for coupling reactions, such as in Grignard or palladium-catalyzed cross-couplings, enabling the introduction of the ethylnonyl group into larger molecules. It may find use in the development of lubricants, surfactants, or agrochemicals where a branched alkyl chain is required for optimal performance. Due to its hydrophobic nature, it can also act as a building block in the synthesis of certain polymers or functional materials requiring long-chain aliphatic structures.